CVE-2026-74422

Kernel crash via encoder cleanup use-after-free

Published Aug 15, 2026 · Updated Aug 15, 2026

Use-after-free in the Rockchip Inno HDMI driver in Linux 7.0 through 7.1.4 allows local users to crash the kernel during DRM teardown. The inno_hdmi structure is allocated with devm_kzalloc and freed during component_unbind_all, but drmm_encoder_alloc_release later dereferences its encoder member. Exploitation requires privileged local access and a Rockchip configuration using the Inno HDMI driver; the bounded consequence is host availability loss.

CVSS severity4.4
Medium
EPSS probability0.14%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Use-after-free in the Rockchip Inno HDMI driver in Linux 7.0 through 7.1.4 allows local users to crash the kernel during DRM teardown. The inno_hdmi structure is allocated with devm_kzalloc and freed during component_unbind_all, but drmm_encoder_alloc_release later dereferences its encoder member. Exploitation requires privileged local access and a Rockchip configuration using the Inno HDMI driver; the bounded consequence is host availability loss.

The record

CVE
CVE-2026-74422
Published
Aug 15, 2026
Updated
Aug 15, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Aug 15, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 15, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=7.0
  2. Affected versionversion=969325a2597ebc4cb001a92992f06f698ab2b467 <195ab348af4b2bdf5988f9397059317bb68fd797
  3. Affected versionversion=969325a2597ebc4cb001a92992f06f698ab2b467 <3cc50e7f73fcf79f28660b9d91566b13cb62e520

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

The Linux Kernel Organization · Linuxversion=7.0; version=969325a2597ebc4cb001a92992f06f698ab2b467 <195ab348af4b2bdf5988f9397059317bb68fd797; version=969325a2597ebc4cb001a92992f06f698ab2b467 <3cc50e7f73fcf79f28660b9d91566b13cb62e520

Published CVSS scores

4.4Amazon LinuxCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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